Buddha says:
"Everything arises and passes away. When you see this, you are above sorrow This is the shining way."
OSHO says: "
Life is a flux, nothing abides. Still we are such fools, we go on clinging. If change is the nature of life, then clinging is stupidity, because your clinging is not going to change the law of life. Your clinging is only going to make you miserable. Things are bound to change; whether you cling or not does not matter. If you cling you become miserable: you cling and they change, you feel frustrated. If you don't cling they still change, but then there is no frustration because you were perfectly aware that they are bound to change. This is how things are, this is the such ness of life.
OSHO.
The Dhammapada: The Way of the Bhudda.